Latest update for Xbox one full of bugs - garden warfare 2 player split screen unplayable

Rendering and location awareness is badly incorrect; ability to float, walk, move around without regard to floors.  Zombies are unaffected  by shooting, don't attack, and suicide on their own.  Split screen mode is pretty unworkable.

Willing to give a reasonable amount of time before returning the game, but need some idea of an ETA before firming up that decision.

EA: Any estimate on when a fix is coming?

Thanks.